Question

Which expression is equivalent to b^-2

Answer 1

`(1)/(b^2)`

Explanation:

Use the laws of exponents to find an equivalent value of b^-2.

The negative law of exponents states that a number with a negative exponents is equal to the reciprocal of that number to the positive exponent.

Basically:

`a^-1 = (1)/(a^1)`

Using this law, you can then simplify b^-2. The reciprocal of b^-2 is 1/b^-2, and by the negative law of exponents, b^-2 changes to a positive exponent:

`b^-2 = (1)/(b^2)`

Answer 2

1/ab^5 is your answer

Explanation: